How to get Semaphore to see Ansible (no pyhthon venv used)

[jrglynn2]

Hi all, I updated a seemingly relevant issue last week (Issue #1075), but since no one has acknowledged it, I am second guessing whether that was the proper place to post. So, I thought I would try to get answers here.

As described in my comment in the Issue:

I just installed semaphore, and am getting the same error regarding "no module".

1:44:01 PM
File "/home/ec2-user/.local/bin/ansible-playbook", line 5, in
1:44:01 PM
from ansible.cli.playbook import main
1:44:01 PM
ModuleNotFoundError: No module named 'ansible'
1:44:01 PM
Running playbook failed: exit status 1

I do not use venv for either semaphore or ansible. Running ansible commands from the command line works fine, but it seems like Semaphore doesn't see ansible for some reason. You can see that it finds ansible-playbook, but ansible-playbook then can't seem to find ansible.

Here is my systemd service file. I tried adding the Environment line, which is a copy of my normal path, and ec2-user is the user we use to run ansible commands from server command line.

[Unit]
Description=Semaphore Ansible
Documentation=https://github.com/ansible-semaphore/semaphore
Wants=network-online.target
After=network-online.target

[Service]
Type=simple
Environment="PATH=/home/ec2-user/.local/bin:/home/ec2-user/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin"
User=ec2-user
Group=ec2-user
ExecReload=/bin/kill -HUP $MAINPID
ExecStart=/usr/bin/semaphore service --config=/opt/semaphore/config/config.json
SyslogIdentifier=semaphore
Restart=always

[Install]
WantedBy=multi-user.target

Any help is greatly appreciated! Thanks!

--jrglynn2

[jrglynn2]

I found a solution for this issue.

Ansible for me was installed as a user (executable location = /home/ec2-user/.local/bin/ansible) . For some reason using ec2-user as User & Group in the service file wasn't enough, so I had to add a PYTHONPATH variable (https://docs.python.org/3/using/cmdline.html#envvar-PYTHONPATH).

In order to get the proper path to use for PYTHONPATH, I ran python -c "import site; print(site.USER_SITE)" when logged in as ec2-user.

So, I ended up adding this line to my service file:
Environment=PYTHONPATH=/home/ec2-user/.local/lib/python3.9/site-packages

Closing discussion.